| Title | Impacts of landsliding in the western Cypress Hills, Saskatchewan and Alberta |
| Download | Download (whole publication) |
| Author | Sauchyn, D J; Lemmen, D S |
| Source | Interior Plains and Arctic Canada/Plaines intérieures et région arctique du Canada; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1996-B, 1996 p. 7-14, https://doi.org/10.4095/207425 (Open Access) |
| Year | 1996 |
| Alt Series | Palliser Triangle Global Change Contribution 25 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Geological Survey of
Canada; (1996). Interior Plains and Arctic Canada, Geological Survey of Canada, Current Research no. 1996-B |
| File format | pdf |
| Province | Saskatchewan; Alberta |
| NTS | 72E/12; 82H/09 |
| Area | Cypress Hills; Police Point; Battle Creek |
| Lat/Long WENS | -110.1667 -109.7500 49.7500 49.5000 |
| Subjects | surficial geology/geomorphology; hydrogeology; geochronology; sedimentology; landslides; erosion; water quality; suspended sediments; Holocene; groundwater levels; radiocarbon dates; hydrologic
environment; radiometric dates; Quaternary |
| Illustrations | sketch maps; analyses; photographs; cross-sections |
| Released | 1996 02 01 |
| Abstract | Landsliding on the Canadian prairies often produces downstream impacts on water quality, reservoir capacity, and fish habitat that represent more significant hazards than the destruction caused by the
slide itself. Erosion measurements of Police Point landslide in the western Cypress Hills, which occurred in 1967 and remains highly unstable, document the importance of groundwater in controlling landslide activity and the futility of conventional
remedial activities in limiting downstream impacts. Runoff from the landslide inputs large volumes of sediment to adjacent Battle Creek, with suspended sediment concentrations (up to 438 mg.L-1)downstream of the landslide being two to three orders of
magnitude greater than occur upstream.
Chronological data are available for only a few sites, all indicting landslide activity in the Late Holocene. Higher regional groundwater tables associated with wetter and cooler climates at this time may
have provided antecedent conditions promoting reactivation of slopes in response to extreme hydroclimatic events. |
| GEOSCAN ID | 207425 |
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